/* Base Styles */
:root {
  --color-background: #ffffff;
  --color-text: #121212;
  --color-text-secondary: #555555;
  --color-primary: #121212;
  --color-secondary: #555555;
  --color-accent: #f0f0f0;
  --color-border: #e0e0e0;
  --color-card: #ffffff;
  --color-card-hover: #f8f8f8;
  --color-button-text: #ffffff;
  --color-button-hover: #333333;
  --color-link: #121212;
  --color-link-hover: #555555;
  --color-footer: #f5f5f5;
  --color-footer-text: #333333;
  --color-code-background: #f5f5f5;
  --color-code-text: #333333;
  --color-callout-background: #f8f8f8;
  --color-callout-border: #e0e0e0;
  --color-warning-background: #fff8e6;
  --color-warning-border: #ffd166;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.05);
  --font-sans: "Work Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell,
    "Open Sans", "Helvetica Neue", sans-serif;
  --font-mono: "Space Mono", monospace;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 8rem;
  --container-width: 1200px;
  --header-height: 70px;
}

.dark-mode {
  --color-background: #121212;
  --color-text: #f0f0f0;
  --color-text-secondary: #a0a0a0;
  --color-primary: #f0f0f0;
  --color-secondary: #a0a0a0;
  --color-accent: #1e1e1e;
  --color-border: #333333;
  --color-card: #1e1e1e;
  --color-card-hover: #252525;
  --color-button-text: #121212;
  --color-button-hover: #e0e0e0;
  --color-link: #f0f0f0;
  --color-link-hover: #a0a0a0;
  --color-footer: #1a1a1a;
  --color-footer-text: #e0e0e0;
  --color-code-background: #2a2a2a;
  --color-code-text: #e0e0e0;
  --color-callout-background: #1e1e1e;
  --color-callout-border: #333333;
  --color-warning-background: #332b00;
  --color-warning-border: #665500;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/png;base64,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");
  opacity: 0.03;
  z-index: -1;
  pointer-events: none;
}

.dark-mode .noise-overlay {
  opacity: 0.05;
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-link-hover);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-md);
}

ul,
ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  cursor: pointer;
  font-family: var(--font-sans);
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-align: center;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}

.primary-btn {
  background-color: var(--color-primary);
  color: var(--color-button-text);
}

.primary-btn:hover {
  background-color: var(--color-button-hover);
  transform: translateY(-2px);
}

.secondary-btn {
  background-color: var(--color-accent);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.secondary-btn:hover {
  background-color: var(--color-border);
  transform: translateY(-2px);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-background);
  box-shadow: var(--shadow-sm);
  height: var(--header-height);
  transition: background-color var(--transition-normal);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 var(--spacing-lg);
  max-width: var(--container-width);
  margin: 0 auto;
}

.logo a {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  align-items: center;
}

.nav-links li {
  margin-left: var(--spacing-lg);
}

.nav-links a {
  font-weight: 500;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.contact-btn {
  padding: 0.5rem 1rem;
  background-color: var(--color-primary);
  color: var(--color-button-text) !important;
  border-radius: var(--border-radius-md);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.contact-btn:hover {
  background-color: var(--color-button-hover);
  transform: translateY(-2px);
}

.contact-btn::after {
  display: none !important;
}

#theme-toggle {
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  border-radius: 50%;
  transition: background-color var(--transition-fast);
}

#theme-toggle:hover {
  background-color: var(--color-accent);
}

.light-mode #theme-toggle .fa-sun {
  display: none;
}

.dark-mode #theme-toggle .fa-moon {
  display: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background-color: var(--color-text);
  margin: 3px 0;
  transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
  display: flex;
  align-items: center;
  min-height: calc(100vh - var(--header-height));
  padding: var(--spacing-xl) 0;
}

.hero-content {
  flex: 1;
  padding-right: var(--spacing-xl);
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-secondary);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.hero-image {
  flex: 1;
  position: relative;
  height: 500px;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.hero-image:hover img {
  transform: scale(1.05);
}

/* Features Section */
.features {
  padding: var(--spacing-xxl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature-card {
  background-color: var(--color-card);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--color-border);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.feature-card h3 {
  margin-bottom: var(--spacing-sm);
}

/* Latest Articles Section */
.latest-articles {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-accent);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

/* Change the articles grid to display only 2 articles per row with more spacing */

.article-card {
  background-color: var(--color-card);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--color-border);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.article-image {
  height: 200px;
  overflow: hidden;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card:hover .article-image img {
  transform: scale(1.05);
}

.article-content {
  padding: var(--spacing-lg);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.article-category {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background-color: var(--color-accent);
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.article-content h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
}

.article-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.read-more {
  margin-top: auto;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  transition: transform var(--transition-fast);
}

.read-more i {
  margin-left: var(--spacing-xs);
  transition: transform var(--transition-fast);
}

.read-more:hover {
  transform: translateX(2px);
}

.read-more:hover i {
  transform: translateX(3px);
}

/* CTA Section */
.cta-section {
  padding: var(--spacing-xxl) 0;
  text-align: center;
  background-color: var(--color-primary);
  color: var(--color-button-text);
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
}

.cta-section .btn {
  background-color: var(--color-button-text);
  color: var(--color-primary);
}

.cta-section .btn:hover {
  background-color: var(--color-button-hover);
  color: var(--color-button-text);
}

/* Footer */
footer {
  background-color: var(--color-footer);
  color: var(--color-footer-text);
  padding-top: var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.footer-logo h2 {
  font-family: var(--font-mono);
  margin-bottom: var(--spacing-sm);
}

.footer-links h3,
.footer-social h3 {
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

.footer-links ul {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-footer-text);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-link-hover);
}

.social-icons {
  display: flex;
  gap: var(--spacing-md);
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.social-icons a:hover {
  background-color: var(--color-primary);
  color: var(--color-button-text);
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  margin: 0;
}

.footer-bottom i {
  color: #ff4d4d;
}

/* Page Header */
.page-header {
  text-align: center;
  padding: var(--spacing-xl) 0;
  background-color: var(--color-accent);
}

.page-header h1 {
  margin-bottom: var(--spacing-sm);
}

.page-header p {
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* Content Page */
.content-filter {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: var(--spacing-lg) 0;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  max-width: var(--container-width);
  margin: var(--spacing-lg) auto;
  padding: 0 var(--spacing-lg);
}

.search-container {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 500px;
}

#article-search {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md) 0 0 var(--border-radius-md);
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}

#article-search:focus {
  outline: none;
  border-color: var(--color-primary);
}

#search-btn {
  padding: 0.75rem 1rem;
  background-color: var(--color-primary);
  color: var(--color-button-text);
  border: none;
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

#search-btn:hover {
  background-color: var(--color-button-hover);
}

.filter-container select {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.filter-container select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.pagination {
  display: flex;
  justify-content: center;
  margin: var(--spacing-xl) 0;
}

/* About Page */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  max-width: var(--container-width);
  margin: var(--spacing-xl) auto;
  padding: 0 var(--spacing-lg);
}

.about-image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-text h2 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.about-text h2:first-child {
  margin-top: 0;
}

.about-text ul {
  margin-bottom: var(--spacing-lg);
}

.team-section {
  max-width: var(--container-width);
  margin: var(--spacing-xl) auto;
  padding: 0 var(--spacing-lg);
}

.team-section h2 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.team-member {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  background-color: var(--color-card);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.member-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.member-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.member-info h3 {
  margin-bottom: 0;
}

.member-role {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.member-social {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.member-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 35px;
  height: 35px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.member-social a:hover {
  background-color: var(--color-primary);
  color: var(--color-button-text);
  transform: translateY(-2px);
}

/* Article Page */
.article-page {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: var(--spacing-xl);
  max-width: var(--container-width);
  margin: var(--spacing-xl) auto;
  padding: 0 var(--spacing-lg);
}

.article-header {
  margin-bottom: var(--spacing-lg);
}

.article-meta {
  display: flex;
  gap: var(--spacing-md);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-sm);
}

.article-image-full {
  margin-bottom: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.article-body h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.article-body h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.article-image-side {
  float: right;
  width: 300px;
  margin: 0 0 var(--spacing-md) var(--spacing-md);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.image-caption {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: var(--spacing-xs);
}

.article-callout {
  background-color: var(--color-callout-background);
  border-left: 4px solid var(--color-callout-border);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
}

.article-callout h4 {
  margin-bottom: var(--spacing-xs);
}

.article-callout p:last-child {
  margin-bottom: 0;
}

.article-callout.warning {
  background-color: var(--color-warning-background);
  border-left-color: var(--color-warning-border);
}

.math-formula {
  padding: var(--spacing-md);
  background-color: var(--color-code-background);
  border-radius: var(--border-radius-md);
  margin: var(--spacing-md) 0;
  overflow-x: auto;
  text-align: center;
}

.article-references {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
}

.tag {
  padding: 0.25rem 0.75rem;
  background-color: var(--color-accent);
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
}

.article-share {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.share-buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.share-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.share-button:hover {
  background-color: var(--color-primary);
  color: var(--color-button-text);
  transform: translateY(-2px);
}

.article-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--spacing-lg));
  height: fit-content;
}

.sidebar-section {
  background-color: var(--color-card);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border: 1px solid var(--color-border);
}

.sidebar-section h3 {
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

.table-of-contents ul {
  list-style: none;
  padding-left: 0;
}

.table-of-contents ul ul {
  padding-left: var(--spacing-md);
  margin-bottom: 0;
}

.table-of-contents li {
  margin-bottom: var(--spacing-xs);
}

.table-of-contents a {
  display: block;
  padding: var(--spacing-xs) 0;
  transition: color var(--transition-fast);
}

.table-of-contents a:hover,
.table-of-contents a.active {
  color: var(--color-primary);
}

.related-article {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.related-article:last-child {
  margin-bottom: 0;
}

.related-article img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--border-radius-sm);
}

.related-article h4 {
  font-size: 1rem;
  margin-bottom: var(--spacing-xs);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

.delay-1 {
  animation-delay: 0.1s;
}

.delay-2 {
  animation-delay: 0.2s;
}

.delay-3 {
  animation-delay: 0.3s;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .hero {
    flex-direction: column;
  }

  .hero-content {
    padding-right: 0;
    margin-bottom: var(--spacing-xl);
  }

  .article-page {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
    margin-top: var(--spacing-xl);
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: 0;
    background-color: var(--color-background);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
    transition: height var(--transition-normal);
    box-shadow: var(--shadow-md);
  }

  .nav-links.active {
    height: calc(100vh - var(--header-height));
    padding: var(--spacing-lg) 0;
  }

  .nav-links li {
    margin: var(--spacing-md) 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  .about-image {
    margin-bottom: var(--spacing-lg);
  }

  .team-member {
    flex-direction: column;
    text-align: center;
  }

  .member-image {
    margin-bottom: var(--spacing-md);
  }

  .member-social {
    justify-content: center;
  }

  .article-image-side {
    float: none;
    width: 100%;
    margin: var(--spacing-md) 0;
  }

  /* Adjust responsive behavior for smaller screens */
  .articles-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
    margin-bottom: var(--spacing-sm);
  }

  .content-filter {
    flex-direction: column;
    align-items: stretch;
  }

  .search-container {
    max-width: none;
  }
}